The line CD CD\,CD passes through the points C(1,8)C(1, 8)C(1,8) and D(−2,k)D(-2, k)D(−2,k).
The gradient of CD CD\,CD is 2.
Work out the value of kkk.
Practise Edexcel GCSE Maths Gradient of a Line with exam-style questions for Foundation and Higher tier. 72 questions, matched to the Edexcel GCSE Maths (1MA1) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.